The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 05, 2010
Filed:
Jun. 26, 2007
Handling multi-rank pools and varying degrees of control in volume allocation on storage controllers
Madhukar R. Korupolu, Sunnyvale, CA (US);
Konstantinos Magoutis, New York, NY (US);
Kaladhar Voruganti, San Jose, CA (US);
Madhukar R. Korupolu, Sunnyvale, CA (US);
Konstantinos Magoutis, New York, NY (US);
Kaladhar Voruganti, San Jose, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Techniques are disclosed for optimizing volume allocation on storage controllers that may have varying degrees of control over directing storage on ranks of pools attached storage components. A performance-based volume allocation algorithm can optimize allocation for such various controllers in a smooth, uniform manner allowing changes from one degree of control to another without incurring costly code changes and re-architecting costs. Where control is not available a surrogate set of possible ranks where the allocation could be made is developed and employed to calculate an adjusted utilization cost. In turn, the adjusted utilization cost is used to calculate a space limit value limited by a target performance threshold.